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Large extension spray cone-angle slinger ring atomizer structure

A technology of atomization cone angle and oil throwing disc, which is applied in the direction of combustion method, combustion chamber, combustion equipment, etc., can solve the problems of small fuel atomization cone angle, long flame tube, oil and gas mixing in the flame tube, etc., and achieves enhanced The effect of oil and gas blending, improving thermal efficiency and improving combustion efficiency

Active Publication Date: 2018-06-12
BEIJING POWER MACHINERY INST
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

At present, the structure of the oil throwing plate is mostly the oil throwing hole type, and the fuel atomization cone angle is small, which is unfavorable for the mixing of oil and gas in the flame tube, resulting in a longer flame tube

Method used

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  • Large extension spray cone-angle slinger ring atomizer structure
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Embodiment Construction

[0027] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] For the baffle combustion chamber using the oil thrower, the present invention adds a swirl structure on the basis of the hole-type oil thrower, and tests the oil thrower to expand the atomization cone angle of the oil thrower. The swirling flow structure increases the residence time of the fuel in the flame tube, strengthens the mixing of oil and gas, improves the combustion efficiency and shortens the axial length of the flame tube.

[0029] In order to solve the problems of the prior art, the present invention provides a large extended atomization cone angle oil throwing pan structure, such as figure 1 and figure 2 As shown, it includes: oil thrower 1, swirl chamber 2, fuel nozzle 3; the direction of air fl...

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Abstract

The invention belongs to the technical field of aero-engine combustor, and particularly relates to a large extension spray cone-angle slinger ring atomizer structure. An effective mean to improve thethermal efficiency of a small turbine engine is to improve the mixing of the head portion of a flame tube. The invention provides a large extension spray cone-angle sling ring atomizer technology, a swirl structure is added at a nozzle of a slinger ring atomizer, and under the action of centrifugal force of the slinger ring atomizer, fuel can leave the slinger ring atomizer in the form of swirlingflow; and on the basis of good atomization, the injection angle of the fuel is increased, the residence time of the fuel in the flame tube is increased, the oil and gas mixing is enhanced and the combustion efficiency is improved. An optimization design of corresponding parameters of various combustion organizations is carried out for the purpose of simple machining and high combustion efficiency, and a simple and efficient slinger ring atomizer structure is obtained.

Description

technical field [0001] The invention belongs to the technical field of aero-engine combustion chambers, and in particular relates to an oil throwing pan structure with a large extended atomization cone angle. Background technique [0002] Small turbine engine is one of the key technologies for high-altitude and long-endurance UAVs. High-altitude and long-endurance drones require high ceiling, low fuel consumption, and low cost for engines. The combustion chamber is one of the core components of small turbofan engines. High speed is one of the outstanding features of small turbofan engines. For this One feature, at present, most small turbofan engines use an oil throwing pan oil supply device, which has a good atomization effect and a simple structure. Compared with conventional nozzles, it has the advantages of low oil supply pressure (no high-pressure oil supply device), simple and compact structure, light weight, low processing accuracy requirements, and good high-altitud...

Claims

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Application Information

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IPC IPC(8): F23R3/38
CPCF23R3/38
Inventor 张韬赵伟陈宝廷
Owner BEIJING POWER MACHINERY INST
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